Hexadecanal (Palmitaldehyde) is a volatile long-chain aliphatic aldehyde. It is naturally emitted from human feces, skin, and breath. Research suggests that it may modulate functional connectivity between brain substrates involved in social appraisal and aggressive execution. Hexadecanal is also confirmed to be highly deterrent to the ant *Lasius niger*, making it a promising subject for research on startle responses and aggression.
- Volatile long-chain aliphatic aldehyde
- Emitted from human feces, skin, and breath
- Receptor OR37B is highly conserved across mammals
- May modulate brain connectivity for social appraisal and aggression
- Highly deterrent to the ant *Lasius niger*
- Promising for research on startle responses and aggression
- Appears as a solid, white to off-white substance
- Targeted as an endogenous metabolite